Question

Factor of (a^3-b^3)-(a-b)^3​

Answer 1

Answer is;

(a+b)3−(a−b)3

⇒a3+3a2b+3ab2+b3−(a3−3a2b+3ab2−b3)

⇒a3+3a2b+3ab2+b3−a3+3a2b−3ab2+b3

⇒6a2b+2b3

⇒2b(3a2+b2)